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Ernest Rutherford
Developed a more complete understanding of structure of atoms.
Charged particles
Atoms were made of space.
Called the center of a element was called the nucleus -
Niels Henrik David Bohr
Proposed that electrons orbit around the nucleus. -
Albert Einstein
Evaluated patent applications for electromagnetic devices.
Einstein deduced the well-known equation E=mc2, suggesting that tiny particles of matter could be converted into huge amounts of energy, foreshadowing the development of nuclear power. -
John Dalton
The elements must be made with smaller matter.
Ultimate Particles
Atomic theory -
Werner Heisenberg
Quantum mechanics.Discovery of allotropic forms of hydrogen. -
Joseph John (J. J.) Thomson
Stated that atoms were simple solid spheres.
He discovered electrons. -
James Chadwick
Fundamental discovery in the domain of nuclear science: he proved the existence of neutrons. -
Louis de Broglie
Got worldwide acclaim for the groundbreaking work on quantum theory.Suggested in his thesis for a doctorate degree that matter.